Photographic-printing apparatus.



PTE WED JULY 3i), 1907,

E.' H. Mmmm?. PHOTQGRPHIG Plummer AiFPARATUS.

PPLIOATION FILED 12mm. 1903.

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PHOTOGRAPH@ PPARATUS.

PPLIUATN FILE? PERE, 1903.

3 SHEETS-SHEET 3.

PATENT lOFFCE.,

HERVEY H'. MCINTIRE, OF SOUTH BEND, INDIANA.

PHGTOGRAPHIC-PRINTING APPARATUS.

Specification of Letters Patent.

Patented July 30, 1907.

Application led February 2.1903. Serial No. 141,542.

To all whom L may concern:

Be it known that l, HnnvnY H. MCINTIRE, a citizen of the United States, residing at South Bend, in the county of St. Joseph and State of indiana., have invented certain new and useful Improvements in Ph(itographic-Printing Apparatus; and l do hereby declare the following to he a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

This invention'relates to .improvements in photographic printing apparatus.

The object of the invention is to provide a machine of the kind named and for the purposes intended which is simple in construction, positive and efficient in its operation, and wherein the duration of time for each exposure is automatically controlled and accurately recorded and the mechanisms for effecting these purposes reset at each operation.

The invention embodies a case in which the negative is mounted and towhich the photographic paper is held to be acted upon by a light emitted for a predetermined period, a motor in the case, a dial operated by the motor, and mechanisms for restoring the motor with power and cutting off the light at each operation.

With these and other objects in View the invention consists in the novel construction, combination and aggroupment of parts, all as will be more fully described hereinafter and iinally pointed out in the appended claims.

In the accompanying drawings forming part of this applicationt--Figurc l is a front elevation of the Inachine with a portion of the case broken away to show the pendulum controlling lever and the depending arm on the platen. Fig. 2 is a side view with the left side of the case removed to show the mptor and its operating mechanisms in side elevation. Fig. 3 is arrear elevation of the upper part of the case with the back` removed to show the mechanisms in elevation. Fig.

4 is a vertical scctioii` through the a section on the line z--z of Fig. 4.

In carrying out the invention, the essential parts of the machine are mounted in any convenient form of motor, and Fig. 5 is cabinet, but the preferred embodiment is shown in the drawings as composed of a rectangular case 1 having at its front an inclined bed-plate 24 provided with an opening in which the negative is detachably posited.

Hinged to the bed-plate at the upper end thereof is a platen 4 between which and the negative the photographie sensitive element is placed, and held during the printing operation. lhe lower end of the platen is provided with a knob 5 by which it may be lifted and from the upper end and near each corner project arms G and 7 the purposes for which will presently appear.

Across the top of the case above the `bed-plate isl secured a plate 8 on which is supported a rectangular frame composed of the vertical bars 10 and horizontal end pieces 11. Journaled in the vertical bars 10 is a shaft 12 of a spring motor and on the shaft is a coil spring 14 one end of which is secured to the plate 8 and the other ond to the shaft. Loosely mounted`on the shaft is an escapement wheel 15 having a ratchet wheel 16 integral with its hub. pulley wheel 17 is splined on the shait in front of the escapeinent wheel and provided with a spring pressed pawl 18 adapted to engage the ratchet wheel 16, and by means of which the escapement wheel 15 is clutched' to the shaft. A dial 19 is fixed on the shaft to rotate withthe pulley 17 and around the `dial are arranged aiplurality of apertures -20 spaced at equal distances apart to divide the dial into units of time which are indicated by numerals opposite each aperture and which in the present drawing are shown to include sixty of such units representing sixty seconds. On the front end of the shaft is mounted an indicator' arm 21,l rotatable independently ofthe dial and having a pin 22 in its end adapted to project through the apertures to the opposite side oi the dial.

On one side of the case is mounted a pulley 23 over which a cord 24 passes7 one end of the cord being secured to the arm 7 and its other end passed around the pulley 17. A guide roller 25 is mounted on the front of the case in the same plane with the pulley 17 so that when the pla-ten is lifted and its arm 7 thrown down the cord 24 will roll around the pulleys 23 and 25 and rotate the pulley 17 and its shaft 12 to which the dial and spring 14 are secured. This will rewindihe spring to'restore the power for the motor and at the same time rotate theedial, While the escapement wheel 15, which is locked by a mechanism hereinafter to be described, will remain stationary, since the pawl 18 will ride over the ratchet. l

On the plate near one side of the case is mounted a switch lever 2G having an upper horizontal arm 27 and a lower horizontal arm 28 bent forwardly and provided with a weight 2S. horizontal arm 28 and the vertical portion of this lever is slightly inclined as at 29 to provide a bearing sur` 'face for the arm 6 which lifts the lever when th'e platen is lowered.

To the upper horizontal arm 27 is connected an electric conductor A, and in the bottom of the case is an electric lamp D which is supplied by the conductors B and C. -The forwardly bent arm 28 forms an obstruction to the pendulum when.the platen is raised, as shown in dotted lines in Fig. 3.

The pendulum 30 is pivoted to the end of the bar 1() and oscill'ates the pallet 31 which controlsthe escape- -mentwheel 15.

To the plate 8 is pi'voted a lever 32 having a weighted arm 33 and a Contact arm 34 adapted to engage the arm The angle formed by the lower I i; senses 27 ot' the switch lever; and extending forwardlyiii the 'path oi the piu 22on the indicator arm is a crarikfarm 35 which is integral with the lever 32 and which 'is engaged by said pin to trip the leverand break .the

electric circuit, as shown in dotted lines in Fig. 3, said pallet discontinue to operate because the dial, to which it is clutched by the pawl and ratchet. is locked against rotation ,by the crank arm 35. Immediately upon raising the platen lthe arm 6 will be disengaged from the swit jh lever which? wlll be permitted to drop to engage the pendulum and hold one end o the pallet in Contact with the escapement wheel, as shown in Fig. 3.

To the front oi the case beneath the pulley 17 is pivoted an arm 37 having a roller 3 8 around which the` winding cord 24 passes. 'This arm takes up the slack inv the cord which is of sufficient length to permit the platen to bp fully raised without rotating the dial, but when the platen is thus raised and the indicatore ,in moved to a point on the dial (say l5) and the platen lowered, the dial will make a quarter revolution and draw up one lourth of the slack in the cord so that when the platen is again raised that portion of the cord which was wound on the pulley will be utilized to reset the dial to the point l5 and repeat the operation at cach movement oi the platen.

The operation of the machine may be briefly stated as follows :-Presuming the parts to be in positions indicated in Fig. l with the platen lowered, the electric circuit broke-inthe entire length ol the cordunwound and the indicator arm set at 60, the starting point; and it be desired to print from a negative requiring thirty seconds exposure. The platen is raised to its highest position, as shown in dotted lines in Fig. 2, and the slack in the cord is taken up and the arm 37 raised to" the position indicated in dotted lines in Fig. 3. Simili taneously with this operation the arm 6 on 'the platen disengages from the switch lever 26 which drops into the path oi the pendulum as vshown in dotted lines in Fig. Il thereby lockingvthe pallet in theescapement wheel. Now the indicator arm is turned and set at 30 and the crank-arm 35 beingv released, the arm 34 oi the lever 32 is permitted to drop to the position indicated in dotted lines in Fig. 3. The platen is now lowered with the sensitive element in position on the negative, and the ami (i engages the switch lever 26 to make the electric connection between the arms 27 and 34 which turns on the light, while the forwardly bent portion ol' 'the arm 28 is raised out of the path of the pendulum which immediately begins to operate and turn the dial until cord, so that when the platen is again raised the dial will be turned back to the same starting pointor will desired and ealli will be exposed'the samehlength of l'tir'nes Obviously the dial may be set for any number of units ot time between the marks 0 and 6'() b'yv the ,operation above described.

Having thus described my invention, what'claim and desire to secure by Letters Patentfisz f I v i. In a photographie printingnppiirartns, a cusrhaving n source of lig-'ht therein and projfieii with means to hold a negative und s sensitized elementgn platen, and n motor in the case controlled by the'movemente oi the plnten.

a source of light therein and `provided with means to hold a negative and a sensitized element, a motor'in the case,

Alm'iependent'of tlxevplaten to automatically stop the motor and extlnguisli'tlie'iight. v A

3. In al photographic printing' apparatus, a case having a source of light-therein and rproviderwith means to hold a negative andes sensit'izedrelement', a motor in the case; means for stopping the motor,-said means'nlso operating to extinguish the iight synchronously with the stopping of the motor. .I A 1 4. In :i photographic printing apparatus, a case having a source or light therein andprovide with means to hold a negative and a 'sensitized element, electric 'conductors within the case to suppiy'the iight, Aa motor in the'case, a

the motor and re-set the switch.

means to hold n negative and u sensitized element, a motor in the crise, a platen to control the operation oftlie motor und to control the admission of iight to the negative, and means for operating the motor for a predetermined period.

G. In a photographic printing apparatus, n case having means to hold a negative und a sensitive element, .a vihratory platen, amrotor, means for lntermittentlycruitting light to the negative at each operation ofV the platen', means for changingr the period of operation for the motor, and means to lock the motor :it the end of the period of operation,

'l'. ln a photographic printing apparatus, a ease having means to hold a 'negative therein, a vlbratory platen to hold the photographic paper on the negative, means to intcipairttenily emit light to the negative, a motor in 'the case. means operated by the movements of the platen t0 'restore the motor vitli power. means to hold the motor locked against operation during the period of restoration, and means for changing theperiod of operation ofthe motor.

S. in a photographie printing apparatus, a case having means to hold a negative therein, a vibratory platen to hold the photographic paper on the negative, and means to intermittently emit light to the negative,` a motor, means operated by the movements of the 'platen to restore the motor with power', means operatedv by the platen to restoration. means operated by the motor to shut ofi. the iight, said last named means noting to stop -tne motor, and .menus to change thc'period oi operation for the motor to regulate the time of exposure for each picture.

vibratory platen provided with an 4nrmpfl connection between the arm and .the motor to restore the latter with power when the platen is operated, a dial operated by the motor and having means to regulate the rotation of the same, a lamp in the euse, electric conductors connected -with the lamp, and an electric switch operated by the dialregulating-meaus to break the circuit and stop the motor at the completion of the printing operation.

lll. In a photographic printing apparatus. a case having means to hold the negative. means to intermittently emit light io the negative, a motor in the case, a vhratory platen provided with an arm, a flexible connection between the :1i-nr and motor, means to take up the slack in the flexible'connection, a dial operated by the motor and lluv- Inr: its' face divided into units of time, .fm :lrni on iludial a platen controlling the operation oi' the motor,'and means Y switch operated by the motor to breuk the 'electric circuit' .and simultaneously stop the motor, and a platen to restore in a photographic printing apparatus, fresse having` 2. in a photographic printing apparatus, a case having loch the motor against operation during. the peri-od of '9. In a photographic printing,r apparatus, n case having l means to hold a negative'tlxerein, a motor Vin the case, u"

adapted to he set at any one of the units to limit the rotation of they dial, an electric lamp in the case provided with conductors, a switch leer to make and break the electric circuit and adapted to be operated by the arm on the dial. and means carried hy the platen to loch the motor against operation when the platen is raised.

11. ln a photographic printingl apparatus, a case havini.r ineaiis to hold a negative therein, a spriiu,r motor iii the case, a platen hinged to the case and adapted to be raised and lowered, an arm on the platen havingV a llezcible conyiioction with the motor torcstore the saine with power when the platen is sed, a pivoted arm hung upon the Ilexilile connection to take up the stack in the saine, a dial operated liv the motor and provided with apertures spaced apart there-around to represent units of time, an arni haviiii;- a pin to engage the apertures, a lamp in the case adapted to be intermittently lit, electric conductors for said lamp, a switch lever connected with one of `said con doctors and havingr a depending arin, an arm on the platen to engage the depending arni of the switch lever, a lever havingl a crank arm adapted to lie engaged by the pin in the indicator ariii at the completion of the movement of the dial, said lever adapted tio contact with the switch lever to break the electric circuit and stop the niotor, suhstaiitially as described. l

lil. iii a photographic printing apparatus, means for iolding a negative and a sensitized element, means for rinittiii,"r licht toy the negative and sensitized element. a motor to control the light emitting means. means for iiohlim.r the sensitized element to the negative and releasing the saine therefrom. and means operated by the last-mentioned means for controlling the operation of the motor.

lil. In a photographic printing apparatus, means fot' holding: a negative and a sensitized eienicnit, means for in teriiiittently emitting light to the negative and sensitized lfit-nient, a movable platen, an intermittently operated ino- Vtor to control the light emitting means, means for predetcrniiiiiu;r the period ot' operation of the motor, means for changing.: the period of operation vot the motor, and means opi-rated by the platen to restore the motor with power.

i4. l-n a device of the ch described. a ease adapted to contain a source of light and provided with -ineans for holding a negative, means operatim,r4 to liold'a sensitized element in contact with the negative during the printing operation, mechanism cooperating with the lastnamed means for synchronizing its operation with the admission ot' light to the negative., and a single means adapted to he set to predetta-mine the period of operation for said synchronized elements. I

l5. ln a photographic printing apparatus, a case having means t'oi' holding a negative and a sensitive element therein. said ease containiir.;l a source ot' light, a motor, and movable means for giving` access to the sensitive element, said means havingr a connection with the motor to ener ze and start the same and a o having: a connection with thtI ligiitiut,7 means to extinguish the light thereof.

1G. In a photographie priiitiiiir;` apparatus, a case having means to hohl a negative and also having' a source 0i" light. moans for interiiiittentiy emitting liglit onto the negative, and an intermittently operated iniitor io regulate the emission of ligg'h to the iietatifro.

17. In a photographic printing apiiai'atus. a rase havingl a lamp therein 'intermittently lighted, :in intermittently opcratedmotor to regulate the lightingr of: the lamp. and means [or controlling the operation olf the motor.

ltl. ln a photographic printing; apparato a case liavi :i lamp therein intermittently li litrd. au intermittentlyv operated motor to regulate the l ting oi` the lamp, and means to change the period of optiatioi. ot the motor.

15). ln a pliotofzraphitl printing apparatus, a case having.7 means to hold a negative and also havin;r means for intermittently ciiiittinir light ou tbe negative. .i iiioiialile platen. a motor to regulate the ein ion oi light. and means op ei'alied by t'he movable platen to restore the motor with power.

2t). ln a photographic printing apparatus, a ca, liavini;` a source ot" light the' n, au intermittently operated motor to -i'egulate the emission ot iight. and iiieaiis to i'irodeter mine and change the period ot' operation oi tan motor.

2i. In fi pliotouiapliic printing* apparatus. a case havin;r a source olf light. means for intermittently emitting l to the negative, said ease also havi'iif,r means t'or holdingr a negative and a sensitized element, :i movable platen, a motor, and means Operated by tlio platt-ii to loci: the motor against operation.

22. 1n a photographic printing;` apparatus, case havinir a source of light, means to hold a netfiitive and a son iized element therein, a movable platen, a motor to i' i late the emi sion oi light to the negative, and means operated by the platen to lock the motor against rotation and extinguish the light.

22'. Iii a photographic printing apparatus. :i case havin;Y a source of light, inf-ans to hold :i negative and a, scusitized element therein, a movable platen, a niotor to reflulate the emission of light to the ca moans operated b v the platen to restore the motor with power, and means operated by the platen to lock the motor against operation during,r the period of restoration. i

24. ln a photographic printing apparatus, a case having a source ot light therein, a movable platen, and an interinitteiitly operated nio-tor in the ease controlled by the `inovenioiits of the platen to regulate the emission ot light to tht` case. a

2).'1. in a photographic printing apparatus, a case having a source of light therein. means ior holding a negative and :i sensitized element therein. a. niovalilt` platen, and a metor controlled by the niov ments of the platen to regulate the emi 'ou ot light to the ca ln testimony whereof I aflix my signature, iii presence oi two witnesses.

-HlRVEY ll. MelNfilRll,

Witnesses (leonor: Oi/rsCi-i, Maraini: Ourson. 

